package com.huidao.dao;

import java.sql.*;
import java.util.ArrayList;
import java.util.List;

import com.huidao.entity.Menu;
import com.huidao.util.JDBCUtil;

public class MenuDaoImpl implements MenuDao {
	
	Connection conn = null;
	PreparedStatement ps =null;
	ResultSet rs =null;
	
	@Override
	public boolean addMenu(Menu menu) {
		String sql = "INSERT INTO Menu(MENU_NAME,MENU_URL) VALUES(?,?)";
		
		try {
			conn = JDBCUtil.getConn();
			ps = conn.prepareStatement(sql);
			ps.setString(1, menu.getMenuName());
			ps.setString(2, menu.getMenuUrl());
			int i  =ps.executeUpdate();
			if(i>0){
				return true;
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			JDBCUtil.free(conn, ps, rs);
		}
		return false;
	}

	@Override
	public boolean delMenu(Long id) {
		String sql = "DELETE FROM Menu WHERE MENU_ID=?";
		
		try {
			conn = JDBCUtil.getConn();
			ps = conn.prepareStatement(sql);
			ps.setLong(1, id);
			int i  =ps.executeUpdate();
			if(i>0){
				return true;
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			JDBCUtil.free(conn, ps, rs);
		}
		return false;
	}

	@Override
	public boolean updateMenu(Menu menu) {
		String sql = "UPDATE Menu SET MENU_NAME=?,MENU_URL=?" +
				"WHERE MENU_ID=?";
		
		try {
			conn = JDBCUtil.getConn();
			ps = conn.prepareStatement(sql);
			ps.setString(1, menu.getMenuName());
			ps.setString(2, menu.getMenuUrl());
			ps.setLong(3, menu.getMenuId());
			int i  =ps.executeUpdate();
			if(i>0){
				return true;
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			JDBCUtil.free(conn, ps, rs);
		}
		return false;
	}

	@Override
	public List<Menu> getListPage(int currentPage, int pageSize,String namekey) {
		List<Menu> list = new ArrayList<Menu>();
		String sql = "SELECT * FROM Menu  WHERE 1=1 ";
		if(namekey!=null&&!namekey.trim().equals("")){
			sql = sql +" AND MENU_NAME LIKE '%"+namekey+"%' ";
		}
			sql = sql +	" LIMIT ?,?";
		try {
			conn = JDBCUtil.getConn();
			ps = conn.prepareStatement(sql);
			ps.setInt(1, (currentPage-1)*pageSize);
			ps.setInt(2, pageSize);
			rs =ps.executeQuery();
			while(rs.next()){
				Menu b = new Menu();
				b.setMenuId(rs.getLong("MENU_ID"));
				b.setMenuName(rs.getString("MENU_NAME"));
				b.setMenuUrl(rs.getString("MENU_URL"));
				list.add(b);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			JDBCUtil.free(conn, ps, rs);
		}
		return list;
	}

	@Override
	public int getTotalCount(String namekey) {
		String sql = "SELECT COUNT(*) FROM Menu WHERE 1=1 ";
		if(namekey!=null&&!namekey.trim().equals("")){
			sql = sql +" AND MENU_NAME LIKE '%"+namekey+"%' ";
		}
		try {
			conn = JDBCUtil.getConn();
			ps = conn.prepareStatement(sql);
			rs =ps.executeQuery();
			if(rs.next()){
				return rs.getInt(1);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			JDBCUtil.free(conn, ps, rs);
		}
		return 0;
	}
	
	@Override
	public List<Menu> getAllList(Long roleId) {
		List<Menu> list = new ArrayList<Menu>();
		String sql = "SELECT * FROM MENU A LEFT JOIN FUNCTION B ON A.MENU_ID=B.MENU_ID AND B.ROLE_ID=?";
		try {
			conn = JDBCUtil.getConn();
			ps = conn.prepareStatement(sql);
			ps.setLong(1, roleId);
			rs =ps.executeQuery();
			while(rs.next()){
				Menu b = new Menu();
				b.setMenuId(rs.getLong("MENU_ID"));
				b.setMenuName(rs.getString("MENU_NAME"));
				b.setMenuUrl(rs.getString("MENU_URL"));
				if(rs.getLong("FUNCTION_ID")!=0){
					b.setIsChecked(1);
				}
				list.add(b);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			JDBCUtil.free(conn, ps, rs);
		}
		return list;
	}
}
